Home / 10,008.66-15,010.02-2,989.20

Finding the Fourth Proportional to 10,008.66, 15,010.02 and 2,989.20

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Solution

The fourth proportional to 10,008.66, 15,010.02 and 2,989.20 is: 4,482.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.66 : 15,010.02 = 2,989.20 : x
  2. Step 2: Convert to fraction form
    10,008.66/15,010.02 = 2,989.20/x
  3. Step 3: Cross multiply
    10,008.66x = 15,010.02 × 2,989.20
  4. Step 4: Simplify right side
    10,008.66x = 44,867,951.78
  5. Step 5: Solve for x
    x = 44,867,951.78/10,008.66
  6. Step 6: Final answer
    x = 4,482.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.